125020012 has 24 divisors (see below), whose sum is σ = 236116496. Its totient is φ = 57578688.

The previous prime is 125020001. The next prime is 125020013. The reversal of 125020012 is 210020521.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 125019974 and 125020001.

It is not an unprimeable number, because it can be changed into a prime (125020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24898 + ... + 29494.

Almost surely, 2^125020012 is an apocalyptic number.

It is an amenable number.

125020012 is a deficient number, since it is larger than the sum of its proper divisors (111096484).

125020012 is a wasteful number, since it uses less digits than its factorization.

125020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 125020012 is about 11181.2348155291. The cubic root of 125020012 is about 500.0266812429.

Adding to 125020012 its reverse (210020521), we get a palindrome (335040533).

The spelling of 125020012 in words is "one hundred twenty-five million, twenty thousand, twelve".